Comment Parent is speaking rubbish. (Score 1) 202
Absolute rubbish. Change the "green lights", behind the jam/incident will slow the flow into the congested area. Making it easier to get relieve the congestion. This with the use of VMS, encourages people to take alternative routes. Also upstream from the incident long green times will help traffic get away from the congestion.
Guess what - it is complex, but computer system and good algorithm can handle complexity.